Physics

Blast Radius Calculator

Estimate the blast radius for a given explosive yield.

Parameters Live Compute
Calculated Output
Approximate radius 66
Formula: Cube-root scaling: R ≈ Z·W^(1/3)
Step-by-Step Breakdown
1. Values used:
2. Explosive yield = 1,000 kg TNT
3. Target overpressure = 35 kPa
4.
5. Approximate radius = 66
Did this calculator solve your problem today?
Report issue to loopingon.com
Sponsored

Blast effects scale with the cube root of explosive energy (Hopkinson–Cranz scaling).

The math behind it

Radius for a given overpressure scales as W^(1/3). This is a rough estimate for educational use only.

Worked Example

1000 kg TNT at 35 kPa overpressure → roughly 66 m.

Frequently Asked Questions

Is this precise?

No — it's a simplified scaling estimate, not for safety planning.

Advertisement